Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Jost Ruwoldt"'
Publikováno v:
Journal of Natural Fibers, Vol 21, Iss 1 (2024)
This article provides a concise insight into the thermoforming of airlaid CTMP pulp. First, the airlaid process was studied, showing that fiber fractionation and the retention of fines occurred in the forming head. Then, the effect of temperature and
Externí odkaz:
https://doaj.org/article/10e5b56c63544c4a8e0a3d0596e0e3ac
Publikováno v:
Sustainable Chemistry for the Environment, Vol 6, Iss , Pp 100102- (2024)
Purity of technical lignin is one of the main obstacles in the utilization of lignin to value-added chemicals, products, and materials. The objective of this study was to investigate and compare single and two stage purification methods for obtaining
Externí odkaz:
https://doaj.org/article/4929966716a947dc80459fc708e19c69
Publikováno v:
Journal of Bioresources and Bioproducts, Vol 8, Iss 4, Pp 408-420 (2023)
In this study, the influence of thermoforming conditions on the resulting material properties was investigated, which aimed at developing advanced wood-fiber-based materials for the replacement of fossil plastics. Two bleached softwood pulps were stu
Externí odkaz:
https://doaj.org/article/0d0d3bfd7379480aa490d2c76fe7a65d
Publikováno v:
Data in Brief, Vol 50, Iss , Pp 109549- (2023)
This article provides UV-spectrophotometry data of technical lignin samples in solutions, which were acquired after ambient aging for up to 110 days or looped measurements on fresh solutions. UV-spectrophotometry of lignin is a useful technique, as i
Externí odkaz:
https://doaj.org/article/0ec1403a94844a6ab8c1f3152b026623
Autor:
Jost Ruwoldt, Kai Toven
Publikováno v:
Journal of Bioresources and Bioproducts, Vol 7, Iss 4, Pp 278-287 (2022)
Linseed oil is a common wood treatment agent, which is often blended with naphthenic oil during its application. In this study, we developed new types of linseed oil blends, where the naphthenic oil was substituted with alcohols and pyrolysis oil. As
Externí odkaz:
https://doaj.org/article/1ee6ac5b4c2b488793b0b2a36c2c11c2
Publikováno v:
Polymers, Vol 16, Iss 3, p 377 (2024)
The aim of this study was to investigate new materials from organosolv fibers, organosolv lignin, kraft fibers, and their blends. The organosolv fibers showed reprecipitated lignin on the surface, a comparably low fiber length of 0.565 mm on average,
Externí odkaz:
https://doaj.org/article/e2b8fd8ba6ab4502a758f2e29931e9ef
Autor:
Fredrik Heen Blindheim, Jost Ruwoldt
Publikováno v:
Polymers, Vol 15, Iss 13, p 2901 (2023)
The characterization and quantification of functional groups in technical lignins are among the chief obstacles of the utilization of this highly abundant biopolymer. Although several techniques were developed for this purpose, there is still a need
Externí odkaz:
https://doaj.org/article/b7c33f3535944558bd66d304a32cb115
Autor:
Jost Ruwoldt, Gisle Øye
Publikováno v:
ACS Omega, Vol 5, Iss 46, Pp 30168-30175 (2020)
Externí odkaz:
https://doaj.org/article/45fe2c544a6643539767dc379aadd645
Publikováno v:
ACS Omega, Vol 5, Iss 46, Pp 30189-30200 (2020)
Externí odkaz:
https://doaj.org/article/36798a25174a4ce8a515dfdc05384920
Autor:
Jost Ruwoldt
Publikováno v:
Surfaces, Vol 3, Iss 4, Pp 622-648 (2020)
Lignosulfonates are bio-based surfactants and specialty chemicals, which are generated by breaking the near-infinite lignin network during sulfite pulping of wood. Due to their amphiphilic nature, lignosulfonates are used in manifold applications suc
Externí odkaz:
https://doaj.org/article/e4e2df9adf2b49ac91202768d348985b